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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2105767Generated: October 31, 2026

Methyl acetoacetate → HCID 68842837, compound

https://huagongshe.com/reaction/2105767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
Reactant2-Bromo-2',5'-dimethoxyacetophenoneHCID 70997—
ReactantSodium MethoxideHCID 10942334—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68842837HCID 6884283782.9%

Reaction Steps

To a solution of 3 g of 3-oxo-butyric acid methyl ester in THF (60 ml) and 5.2 ml of a solution of sodium methoxide (5.4 M in methanol) was added over 15 minutes a solution of 7 g of 2-bromo-1-(2,5-dimethoxy-phenyl)-ethanone in 30 ml of THF. The reaction mixture was allowed to stir at room temperature for 16 hours, during which time a precipitation occurred. The reaction mixture was then diluted in diethyl ether and washed several times with water. The organic phase was then dried with sodium sulfate and concentrated in vacuo. The residue was then triturated with isopropyl ether and filtered to give 6.3 g of the title compound. MS (ISP) 295.1 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07579369B2
Source datasetuspto-grants-2009_08
ORD IDord-4c9d8853b18243f580a536251d0cdd07
Source noteuspto-grants-2009_08